Year	% of total working-age population with basic education
2000	47.558
2001	47.749
2002	47.908
2003	47.221
2004	45.107
2005	44.044
2006	42.593
2007	42.449
2008	43.413
2009	42.495
2010	42.105
2011	41.105
2012	41.011
2013	41.55
2014	41.907
2015	42.067
2016	42.498
2017	41.815
2018	43.675
2019	44.949
2020	44.163
2021	43.722
2022	42.954
2023	43.563